.PHONY:all
all:myfile myfile1 myfile2 myfile3
myfile:file.c
	gcc -o $@ $^
myfile1:file1.c
	gcc -o $@ $^
myfile2:file2.c
	gcc -o $@ $^
myfile3:file3.c
	gcc -o $@ $^
.PHONY:clean
clean:
	rm -f myfile myfile1 myfile2 myfile3
